200A and 202 reproduction
frames back
in stock.

1hpycmpr
I recently picked up a PW308A stove and I have a question regarding the pump assembly.
Here's a picture of the pump assembly.
[IMG-2826-Copy]

It appears that the pip is gone.  What do you folks use to make one?  I know it has to be fuel resistant.  Do you folks just find some buna/viton material and cut one up until it fits or is there a source where I can locate one already made?
[IMG-2829-Copy]

Thanks!
Mark
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Gunhippie
I usually buy a Buna o-ring of the right width to fit the cup--the biggest one I can find. Use a very sharp blade and cut off a section so it sticks just barely out of the cup and you should be good to go.

There should also be a Buna or Viton gasket under the top of the pump tube to seal it to the tank. I used some concentric punches to make mine, but don't recall what the sizes were.
It's priceless until someone puts a price on it.
Walk a mile in a man's shoes before you criticize him--then you're a mile away, and he has no shoes.
Texan's last words: "Y'all--hold my beer--I wanta' try sumptin'."
Timm--Middle of nowhere, near the end of the road, Oregon.
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hikerduane
I can mail you a pip if needed.
Duane
Duane-All seasons, year round backpacker and camper.  So many stoves and lanterns, who's counting.
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1hpycmpr
Thanks, Timm.  Yes, I forgot about the tank sealing one at the top being that it is tucked away and out of sight.  I appreciate the heads up.  
Mark
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Majicwrench
I just punch em out of whatever I find in my spare gasket pile 🙂 

I have a piece of Buna I bought just for this years ago, it works well.

The Oring trick like Timm is talking about....I struggle to get a flat enough surface, need sharper blades or steadier hands. But it does work.

Just a note, often when I do a new pip it leaks to start with. Leave it there over night, they usually kinda seat and work well.
Keith
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Chucker
Many originally had cork gaskets. I use BunaN or Viton from flat stock for PIPs, 1/8th to 1/4in. thick depending on the application. 
Chuck
"...we also glory in our sufferings, because we know that suffering produces perseverance; perseverance, character; and character, hope" Romans 5:3-4
Eye-SEE-C-C Member #1333 -- MilSpecOps #003
"Michigan - from the Ojibwa word “meicigama,” meaning “great water.”
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1hpycmpr
Thanks for the advice and tips.  I haven’t worked with a lot of stuff that incorporate pips in the design.
Mark
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Gunhippie
The problem I've had with making pips from Viton is that most Viton is too hard--70 Duro or higher. Most of the Buna material I have is 55-60 Duro and seats much better. For falt gaskets, this doesn't much matter.

For fuel resistance and durability, there isn't any real difference between Viton and Buna-N in the environments we use them. Viton is better at extreme temperatures, and Buna at very low ones--but both are well outside our window of use.
It's priceless until someone puts a price on it.
Walk a mile in a man's shoes before you criticize him--then you're a mile away, and he has no shoes.
Texan's last words: "Y'all--hold my beer--I wanta' try sumptin'."
Timm--Middle of nowhere, near the end of the road, Oregon.
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